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/*
** The Sleuth Kit
**
** Brian Carrier [carrier <at> sleuthkit [dot] org]
** Copyright (c) 2024 Sleuth Kit Labs, LLC. All Rights reserved
** Copyright (c) 2010-2021 Brian Carrier. All Rights reserved
**
** This software is distributed under the Common Public License 1.0
*/
#pragma once
#ifdef HAVE_LIBMBEDTLS
#include "MetadataValue.h"
#define BITLOCKER_STRETCH_KEY_SHA256_LEN 32
#define BITLOCKER_STRETCH_KEY_SALT_LEN 16
class MetadataValueStretchKey : public MetadataValue {
public:
MetadataValueStretchKey(BITLOCKER_METADATA_VALUE_TYPE valueType, uint8_t* buf, size_t bufLen);
BITLOCKER_STATUS parseStretchKeyUsingPassword(uint8_t* passwordHash, size_t passwordHashLen, uint8_t* stretchKey, size_t stretchKeyLen);
~MetadataValueStretchKey();
private:
BITLOCKER_STATUS generateStretchedKey(uint8_t* passwordHash, size_t passwordHashLen, uint8_t* salt, size_t saltLen, uint8_t* result, size_t resultLen);
const size_t m_headerLen = 20;
BITLOCKER_ENCRYPTION_TYPE m_encryptionType;
uint8_t m_salt[16];
MetadataEntry* m_encryptedKeyEntry = NULL;
};
#endif
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